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  <title>Divide two arbitrary precision numbers</title>

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</div><hr /><div id="function.bcdiv" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">bcdiv</h1>
  <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">bcdiv</span> &mdash; <span class="dc-title">Divide two arbitrary precision numbers</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.bcdiv-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">string</span> <span class="methodname"><strong>bcdiv</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$left_operand</code></span>
   , <span class="methodparam"><span class="type">string</span> <code class="parameter">$right_operand</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$scale</code></span>
  ] )</div>

  <p class="para rdfs-comment">
   Divides the <em><code class="parameter">left_operand</code></em> by the
   <em><code class="parameter">right_operand</code></em>.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.bcdiv-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">left_operand</code></em></dt>

     <dd>

      <p class="para">
       The left operand, as a string.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">right_operand</code></em></dt>

     <dd>

      <p class="para">
       The right operand, as a string.
      </p>
     </dd>

    
    <dt>
<em><code class="parameter">
scale</code></em></dt>
<dd>
<p class="para">此可选参数用于设置结果中小数点后的小数位数。也可通过使用
<span class="function"><a href="function.bcscale.html" class="function">bcscale()</a></span> 来设置全局默认的小数位数，用于所有函数。
</p></dd>

   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.bcdiv-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the result of the division as a string, or <strong><code>NULL</code></strong> if 
   <em><code class="parameter">right_operand</code></em> is 0.
  </p>
 </div>

 
 <div class="refsect1 examples" id="refsect1-function.bcdiv-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-3299">
   <p><strong>Example #1 <span class="function"><strong>bcdiv()</strong></span> example</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">bcdiv</span><span style="color: #007700">(</span><span style="color: #DD0000">'105'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'6.55957'</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">3</span><span style="color: #007700">);&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;16.007<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
 </div>

 
 <div class="refsect1 seealso" id="refsect1-function.bcdiv-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.bcmul.html" class="function" rel="rdfs-seeAlso">bcmul()</a> - Multiply two arbitrary precision numbers</span></li>
   </ul>
  </p>
 </div>

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